feat: Add pluralization to the qualification labels

[Merkur39]

BREAKING CHANGE: getBoundT: With the arrival of pluralization, the return of this function has been updated.
The second parameter, to indicate the country, is no longer of String type.

Before, we use this implementation:

const t  = getBoundT(lang)
t("translation.key", "fr" )

Now please follow the following example:

const t = getBoundT(lang)
t("translation.key", { country: "fr" })

For pluralization, just add the smart_count option

t("translation.key", { country: "fr", smart_count: 2 })

The Items.invoices translation key has been removed, its value has been added to the Items.invoice key in its plural version.
Please use this new implementation:

t("Items.invoice", { smart_count: 2 })

The following translation keys are no longer plural by default. Items.other_revenue, Items.unemployment_benefit, Items.personal_sporting_licence, Items.tax_timetable.
Please use this new implementation:

t("translation.key", { smart_count: 2 })

[JF-Cozy]

Pour les exemples de BC, perso j'aime bien indiquer ce qu'il y avait avant, et ce qu'il doit y avoir maintenant. Ca permet de retrouver plus facilement des cas à modifier dans l'app.

[Merkur39]

Pour les exemples de BC, perso j'aime bien indiquer ce qu'il y avait avant, et ce qu'il doit y avoir maintenant

Ajouté au commit et à la description 👍